Hose-coupling



E. N. ROTH.

HOSE COUPLING.

APPLICATION FILED MAR. 24, 12H9.

1,346,425. Ptenmd July 13, 1920.

Ufff jf? E. N. ROTH.

HOSECOUPLING.

APPLICATION FILED MAR. 24, I9I9.

1,846,425. I Patented July 13, 1920.

3 SHEETS-SHEET E. N. ROTH.

HOSE COUFLING.

APPLICATION FILED MAR. 24, I9I9.

1,346,425, 'Patented-July 13, 1920 3 SHEETS-SHEET 3.

lJNrienY sraies EA'EENT OFFICE.

EDWARD N. ROTH, OF CHICAGO, ILLINOS, ASSIG-NOR TO ROTH MANUFACTURINGCOMPANY, OF CHICAGO, ILLINOS, A CORPORATION ILLINOIS.

HOSE-COUPLING.

intensa- ApplicationA filed Iam-chv 24, 1919.

To all 107mm t may concern Be it known that I, EDWARD N. Born, a citizenof the United States, residing at Chicago, in the county of Cook andVState of illinois, have invented certain new and useful Improvements inHose-Couplings, of' which the following is a specification.

My invention relates to a hose coupler, and more particularly to arailway steam train pipe hose coupler comprising two ele ments, one tointerlock with 'the mating (.:mipler and the other, the conduit memberoit the coupler which is adapted to be for :ed against such matingcoupler, or its gasket, together' with means, a cam ring or otherwedging device, for example, flier operating the conduit member. Theprimary object oit the invention is to provide means for increasing thefrictional engagement and providing a spring cushion between certain ofthe parts oit' the coupler to prevent a loosening movement thereof whichis likely to otherwise occur because of vib 'ation or other disturbingforces to which the couw pling may be subjected when in service; thiscushioning means also is intended to serve the purpose of preventing thebreakage of the parts or the crushing of the lcoupler gaskets in casethe wedging means should be driven home too hard.

rthe invention is illustrated, in certain preferred embodiments, in theaccompanying drawings, modifications oit which will suggest themselvesto those skilled in this art. i

in the drawings"d Figure l a sectional view of a coupler el? the typeindicated provided with the improvement el my invention.

Fig. 2 is a sectional view on line 2-2 of Fig. l. f

Fig. 3 is a fragmentary view of a pre- 'ferred form of the resilientelement used for obtaining the result desired.

.F l- .is a cross sectional view, on line @P t of Fig;

F 5 is a view in elevation, with parts in section, of a pair of couplersin interlocked relation.

Fig. 6 is a view similar to Fig. 2, illustrating a modilication.

Fig. 7 is a view, in detail, of the modiiied form of resilientcushioning device shown in Fig. 6.

Specification of Letters latent.

coupler, as shown in Fig.

Patented July 13120.

serial No. 284.759.

Fig. 8 is a sectional view on` line 8--8 of ments, aV coupling member orcoupler head J l0, a conduit member ll movable back and forth throughthe coupling member, and a wedging or cam ring )'.2 for operating theconduit member. The coupler'V head has an arm 18 formed with an openingle whereby the arm may be engaged with an undercut lug i5 on the side ofthe head et the mating The conduit member is provided with a nipple 1Gfor attachment to the rubber hose 17 or other pipe connection. Theconduit member is also shown as provided with a gasket 18 oiI theV usualexpansible type although any suitable gasket might be used in thisconnection. The cam ring l2 bears against a lug :19 on theA conduitmember. Its thrust is against a shoulder 20 on the coupling member.Between two of the coperating elements'o'fthe coupler, preferablybetween the can r.ing and shoulder 20 et the coupling nie-moer is aresilientcushioning element 2l which, in the form shown in Figs; l to 5inclusive, is a ring curved in cross section asv shown in Fig. l andlorrned with notches 22 on its inner edge. The ring is made preferablyoi" steel or other spring metal and is quite stiff. lts resiliency,however, is increased by the notches 22.

lt will be seen that a device of this sert increases the frictionalengagement of the parts of the coupler so as to preserve the wedgingrelation of such parts as against a rotation el the cam ring in areverse or loosening direction. Moreover, it provides a cushion forabsorbing vibration to which a railway steam train pipe coupling issubjected because of its suspended position between the cars.Furthermore, the device will act as a take-up in case the trainman,

who is klikely to be careless in this respect, drives the cam ring hometoo hard, and

prevent the breaking of some part oi' theV lt willbe understood that thelocation ofY the resilient or cushioning device with respect tothe partsof the coupler may be varied and also that the form of such device issubject to modification. For example, with reference tothe form of thedevice, I may employ an arcuate strip 23 just Ashort or" a,completeeircle, formed with radial corrugations to give it resiliency,as shown Y in Figs. 6, 7 and 8. Y

A diii'erent form of the invention is shown in Figs. 9 to l2 inclusive.The coupler head l()a is formed with a groove 2A of irregular contour inwhich is seated a'spring steel member 25 V(Figs. 1l and l2) which isformed with bends 26,26 at substantially diametrically opposite pointsladapted to bear .against the cam ring 12. Operation oi the cam lring toforce the conduit member ll toward the mating Ycoupler tends to fiat,-ten Vout and compress the spring member 25. I claim: v

1.`A hose coupler comprising, in combination, a coupling member adaptedto engage a mating coupler, a conduit memberv movable in said couplingmember, wedging means between said members, and a resilient elementarranged to bearl against said wedging means and to be stressed tocushion said parts and prevent a loosening of the wedging means.

2. A hose coupler comprising, in combi-V nation, a coupling memberadapted to engage a matingeoupler, a conduit member movable in saidcoupling member, a cam ringbetween said members, and a resilient elementarranged to bear against said cam V and p ring and to be stressed tocushion said parts reventl a loosening movement of the cam ring.`

'3. A hose coupler comprising, in combiV nation, a couplingmemberadapted to engage a mating coupler, a conduit member movable insaid coupling member, a vmem-V Y ber for forcing said conduit memberagainst said other coupler, and a resilient element Varranged betweensaid last mentioned member and one of the other members Vadapted to becompressed when the `parts'of the Y as to be flattenedand put understress when thel couplers are operatively engaged.

5. A hose coupler comprising, in'combination, a coupling member adaptedto engage a mating coupler, a conduit member movable in said couplingmember, awedg ing member interposed between the aforesaid members, and aresilient element between the wcdging member and one of the othermembers.

6. A hose4 coupler comprising, in combination, a coupling member adaptedto engage a mating coupler, a conduitmember movable in said couplingmember, a cam ring interposed between said members, vand a resilientelement between the cam ring and one ofl said members.

7.*A hose coupler comprising, in combination, a couplingmember adaptedto engage a mating coupler, a conduit member movable in saidcouplingmember, a cam ring interposed between said members, and

an annular spring metalV element between member, a conduit member andacam ring for' producing relative movement between said coupling memberand conduit member, i

the coupling member being ormedwith a recess in the portion thereofsurrounding the conduit member, and a spring element seated in saidrecess and formed with bends Vadapted to bear against said cam ring.

, EDWARD N. ROTH]

